<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>你好,请登录</h1>
<form action="/loginCommit" method="post">
    用户名:<input type="username" name="username">
    密码:<input type="password" name="password">
    <input type="submit" value="登录">
</form>
</body>
</html>